Quick Answer
Blown-in cellulose insulation offers better thermal performance, reduced air leakage, and lower installation costs compared to fiberglass batts in off-grid homes, making it a superior choice for energy efficiency and reducing energy consumption.
Better Thermal Performance
Blown-in cellulose insulation provides a more complete fill in wall cavities, reducing thermal bridging and air leakage, which can account for up to 30% of heat loss in a home. Cellulose insulation also has a high R-value (R-3.8 per inch) and can be installed to a depth of up to 7 inches in walls, resulting in a higher overall R-value compared to fiberglass batts. This leads to significant energy savings and reduced heating and cooling costs.
Reduced Air Leakage
Blown-in cellulose insulation is designed to fill gaps and crevices in wall cavities, reducing air leakage and the associated heat loss. In fact, studies have shown that cellulose insulation can reduce air leakage by up to 90%, compared to fiberglass batts. This is especially critical in off-grid homes, where energy efficiency is paramount, and air leakage can result in significant energy losses.
Lower Installation Costs
While the initial cost of blown-in cellulose insulation may be higher than fiberglass batts, the long-term energy savings and reduced maintenance costs make it a more cost-effective option. Additionally, blown-in cellulose insulation can be installed using a variety of application methods, including a small machine that can be rented for around $100-$200 per day, reducing labor costs.
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